Gluing-press



4 SheetsSheet 2. W. MUNCH. GLUING PRESS (No Model.)

' No. 592,916. Patented Nov. 2,1897.

winesses:

(No Model.)

W. MUNOH.

I GLUING PRESS. No. 592,916. Patented Nov. 2,1897.

Inventor-- WaZter' Jam/ch.

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' Fig. 3 showing UNITED. STATES PATENT Eric-E.

WALTERMUNCH, OF ST. PAUL, MINNESOTA.

GLUlNG-PRESS.

SPECIFICATION forming part of Letters Patent No. 592,916, dated. November 2, 1897. Application filed May 23, 1896. {Serial No. 592,868. (No model.)

To aZZ whom it may concern;

Be it known that I, WALTER MUNCH, of St. Paul, Ramsey county, Minnesota, have invented certain Improvements in Gluing- Presses, of which the following is a specification.

My invention relates to improvements in clamping machines or presses for the gluing of the veneers in cabinet or other woodwork, its object being more particularly to provide an improved construction of the same in which the clamping screws or jacks are independently connected to a common drivingshaft and in providing means for automatically and independently stopping the travel of the jacks when they have been caused to bear with a predetermined pressure upon the stock; and it consists in other improvements in-the construction hereinafter more particularly described and claimed.

In the accompanying drawings, forming Figure *1 isa partial' side elevation of my machine. Fig. 2 is an end View of the same. Figs. 3 and 4. are sectional details taken through the shaft and actuating-clutch of one of the clam pin g-j acks, the members of the clutch out of engagement, so as to stop the travel of the jack, and Fig. 4. showing the relative positions before the members of the clutch have been released from engagement. Fig. 5 is a detail illustrating the driving connection" between the jack and driving-shaft and the cam for operating the clutch to connect the screw with the driving-shaft. Figs. 6 and 7 are details of the members of the clutch by means of which the screw is operatively connected with the shaft. Fig. 3 is a top'view of the gear or female member of said clutch, and Fig. 9 is a diagrammatic View of the gearteeth in engagement.

In the drawings the frame A of the machine is formed with the suitable cross-beams 2, side standards 3, and top cross-beams 4. for supporting the driving-shaft and other operating mechanism.

Carried by the top cross-beams l and journaled in suitable supports 5 are the main driving-shafts 6. These shafts are operated from the pulley 7, mounted upon the shaft 8, arranged parallel with the shafts 6 and operatively connected with the first shaft 6 by the intermeshing gears 9 and 10. The other main shafts shown are actuated from the gear 10 of the first shaft by the intermeshing gear and sprocket wheels 11, 12, 13, and 14:. Upon either side of the drive-pulley 7 is the idlerpulley 15, uponone of which idler-pulleys one of the oppositely-running belts 16 andl? is adapted to be placed by the belt-shifter 18. Thus by shifting the belts either of them, as desired, will run upon the drive-pulley to reverse the operation of the machine.

The series'of clamping screws or jacks G] are arranged adjacent the driving-shafts 6 :and are each independently connected with one of said shafts. is threaded through the block 20, held inthe isocket 21 in the bottom of the cross-beam by means of the tension-springs 22. end 23 of the shaft is of smaller diameter than ,the threaded portion, forming an intermedijate shoulder 24, which in one operation of the ma chine releases the members of the ac-- tuating clut'ch, as hereinafter described.

. Arranged'to slide upon the part 23 and held from turning by means of a feather or other suitable connection 25 is the male member 26 of the clutch, which works inside of the The screw 19 of each jack The upper member 27.

The'fmember 26 has a cylindrical or body part 28,which works on the shaft 23 and is pro- .vided at its top with an enlarged part or flange 29. Similarly the member 27 has an opening to receive'the portion 28 and a socket 30 at its top to receive the flange 29. The bottom of the socket in the female member is provided with ratchet-shaped teeth 31 and the bottom or under side of the flange 29 is provided with oppositely-arranged similar teeth 32. The periphery of the member 27 is formed with a worm-gear 33, interineshing with the worm 34 upon the main shaft, so as to be continuously actuated thereby. It will thus be seen that with the shaft of the jack in raised position the male member of the clutch will be lifted by the shoulder 24, so that its teeth will be out of engagement with the teeth carried by the opposite member, but when forced or carried downward it causes the engagement of the teeth to actuate the jack.

To hold the clutch members in engagement,

I provide a cam 35, which is pivoted in the yoke 36. This cam is provided with an operating-arm 37, which when thrown up into the dotted-line position shown in Fig. 5 will cause the cam to bear upon the male clutch member and hold it pressed firmly in engagement with the female member, the arm 37 being held in said raised position by means of the spring-controlled stop 38. This stop is carried by a coiled spring 39 and projects through an opening iO in the side of the yoke 36, the strength of the spring being adjusted by the screw 41, so as to cause it to yield to a predetermined strain to free the cam-lever and allow it to drop to normal position.

Vith the arm 37 in raised position, as shown in Fig. 5, the bearing-block 42 upon the under side of the arm bears upon the beveled end of the projecting stop 88, so as to be held by it in such raised position until released by the upward thrust of the male clutch member, as hereinafter pointed out. The female member 27 of the clutch rests upon a suitable bearing-block 43, upon which it turns.

In operation, the main shafts being continuously actuated, as hereinbefore described, and the clamping-jacks being in raised position, the stock 4A is put in place under the selected jacks. The cam-lever of each of these jacks is then thrown into raised position, so as to force the male member of the clutch downward and cause its teeth to engage with the opposite member, by which it is rotated to turn the shaft of the jack and carry it into contact with the stock. The cam-levers are each held in raised position to retain the clutch members in engagement by means of the stop 38, hereinbefore described, the controlling-spring of which has been adjusted so as to yield to a predetermined strain. The clutch members are rotated by the main shaft in the direction indicated by the arrow in Fig. 9, which is in the direction of the inclines of their teeth, so that the wedging action of the teeth of the female member upon the teeth of the opposite member tend to force said members apart, the members being held in engagement, as stated, by the cam until the jack has been actuated to apply a predetermined pressure to the stock, this pressure bein g determined by the adjustment of the controlling-spring of the stop. hen this predetermined pressure is reached, the strain of the upward thrust of the male clutch member caused by the wedging action of the gearteeth will cause the spring holding the stop under the cam-lever to yield, allowing it to drop and free the male clutch member, which will then be forced outof engagement with the opposite member by the wedging action, causing its teeth to ride over the teeth of the female member, as before, without turning the jack-shaft.

The jack is supported by the bearing-block 20,which isheld in the socket 21 by the springs 22, so that when the cam-lever is turned upward to bring its cam into engagement with the male member of the clutch these springs will yield, allowing the movable clutch member to be carried into engagement with the opposite member, as shown by dotted lines in Fig. 5. As the j ack-sha'ft is rotated this block will first be carried into place in its socket and the continued actuating of the shaft will cause it to travel through the block. It will thus be seen that the jacks are thrown into operative engagement with the continuouslyrunning main shaft successively and at will by the attendant and that when the predetermined pressure upon the stock is reached by any one of said jacks it is automatically stopped by the release of the clutch members, as hereinbefore described, holding the stock under the required pressure until the jacks are released.

Then it is desired to release the jack so as to remove the stock, the shafts are reversed by the shifting of the belts. This causes the female members of all the clutches to be oppositely rotated, the male clutch members dropping to bring their teeth into engagement with the teeth of the female members, thus oppositely turning the screws of the jacks to simultaneously raise them from the stock. The jacks are then raised until their shoulders 18 engage the male members of the clutches, lifting them out of engagement with the female members, and thus stopping the operation of the jacks. The machine is then ready to be filled with stock, the running of the machine in the meantime, if desired, being stopped, and when filled with stock the belts may be shifted and the above-described operation repeated.

I claim- 1. In combination, the driving-shaft, and the series of screws, the means forindependently connecting each of said screws with said shaft to drive said screws, and the means for automatically releasing all of said screws when a predetermined working strain upon the same is attained.

2. The combination with the continuouslyrunning shaft, of the screw,,the mechanical means for throwing said screw into driven engagement with said shaft when the same is running in one direction, automatic means for disengaging the same actuated by a predetermined working strain upon said screw, automatic means for throwing said screw into driven engagement with said shaft, when the latter is running in the opposite direction, and the automatic means for disengaging the same, actuated by a predetermined reverse travel of said screw.

3. In an apparatus of the class described, in combination the driven shaft, the series of screws, the means for independently and operatively engaging each of said screws with said shaft to drive said screws, the automatic means for independently disengaging each of said screws from said shaft, when a predetermined strain upon said screw is attained, and the means for automatically and simultaneously throwing all of said screws into engagement with said shaft when it is oppositely rotated so as to reverse said screws.

4. In combination with the continuouslyrunning driving-shaft and the series of adjacent screws, the clutch interposed between each screw and shaft, adapted to be mechanically set to throw the same into operative engagement with said shaft, and to be automatically disengaged by a predetermined working strain, and to automatically connect said a predetermined reverse travel of said screw. I

In testimony whereof I affix my signature in presence of two witnesses.

W'ALTER MUNCI-I.

\Vitnesses:

T. D. MERWIN, H. S. JOHNSON. 

